Weather History for Mason City, IA

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Month of January, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 32 °F 20 °F 6 °F
Mean Temperature 27 °F 11 °F -8 °F
Min Temperature 21 °F 2 °F -22 °F
Degree Days  
Heating Degree Days (base 65) 73 54 38 1676
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 28 °F 8 °F -26 °F
Precipitation  
Precipitation 0.32 in 0.07 in 0.00 in 1.06 in
Snowdepth 13.0 in 10.2 in 0.0 in -
Wind  
Wind 38 mph 11 mph 0 mph
Gust Wind 46 mph 30 mph 23 mph
Sea Level Pressure  
Sea Level Pressure 30.65 in 30.08 in 29.49 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 22, 2011 Rise Set
Actual Time 7:38 AM CST 5:12 PM CST
Civil Twilight 7:07 AM CST 5:43 PM CST
Nautical Twilight 6:32 AM CST 6:17 PM CST
Astronomical Twilight 5:58 AM CST 6:51 PM CST
Moon 9:09 PM CST (1/22) 8:57 AM CST (1/22)
Length of Visible Light 10h 36m
Length of Day
9h 34m
Waning Gibbous, 89% of the Moon is Illuminated
Jan 22
Waning Gibbous
Jan 26
Last Quarter
Feb 2
New
Feb 11
First Quarter
Feb 18
Full

Weather History Calendar

Precipitation Actual month total 1.06 Normal Month Total: 0.98
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Snow
Actual:
9 | 1 T
Average:
23 | 6 0.03
Scattered Clouds
Actual:
23 | 0 0.00
Average:
23 | 6 0.03
Mostly Cloudy
Actual:
32 | 7 T
Average:
23 | 5 0.03
Scattered Clouds
Actual:
17 | -2 0.00
Average:
23 | 5 0.03
Snow
Actual:
29 | 2 T
Average:
22 | 5 0.03
Snow
Actual:
19 | 14 0.02
Average:
22 | 5 0.03
Snow
Actual:
18 | 4 0.06
Average:
22 | 5 0.03
Snow
Actual:
11 | -7 0.00
Average:
22 | 5 0.03
Partly Cloudy
Actual:
16 | -10 0.00
Average:
22 | 5 0.03
Snow
Actual:
22 | 16 0.32
Average:
22 | 4 0.03
Snow
Actual:
21 | 13 0.13
Average:
22 | 4 0.03
Snow
Actual:
13 | -8 T
Average:
22 | 4 0.04
Fog
Actual:
14 | -9 T
Average:
22 | 4 0.04
Snow
Actual:
20 | 0 T
Average:
22 | 4 0.04
Snow
Actual:
20 | -2 T
Average:
22 | 4 0.04
Snow
Actual:
16 | -5 T
Average:
22 | 4 0.04
Snow
Actual:
30 | 16 0.23
Average:
22 | 4 0.03
Snow
Actual:
21 | 5 0.01
Average:
22 | 5 0.03
Snow
Actual:
6 | -8 0.03
Average:
23 | 5 0.03
Snow
Actual:
11 | -14 T
Average:
23 | 5 0.03
Snow
Actual:
6 | -22 T
Average:
23 | 5 0.03
Snow
Actual:
10 | -10 T
Average:
23 | 5 0.03
Scattered Clouds
Actual:
9 | -18 0.00
Average:
23 | 5 0.03
Mostly Cloudy
Actual:
29 | 9 T
Average:
23 | 5 0.03
Fog
Actual:
21 | 1 0.00
Average:
23 | 6 0.03
Snow
Actual:
23 | 15 T
Average:
23 | 6 0.03
Fog
Actual:
32 | 18 T
Average:
24 | 6 0.03
Fog
Actual:
32 | 21 0.00
Average:
24 | 6 0.03
Snow
Actual:
32 | 9 T
Average:
24 | 6 0.03
Mostly Cloudy
Actual:
22 | 8 0.00
Average:
24 | 7 0.03
Snow
Actual:
22 | 16 0.26
Average:
24 | 7 0.03
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Jan high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 9 5 1 3 -1 -8 80 75 69 30.15 29.85 29.65 10 5 0 35 23 40 T Fog , Snow
2 23 12 0 15 7 -4 87 78 68 30.16 30.09 29.99 10 10 10 17 10 23 0.00  
3 32 20 7 28 18 3 92 84 75 30.07 30.00 29.92 10 10 7 28 11 32 T  
4 17 8 -2 10 2 -5 96 85 73 30.14 30.07 30.01 10 9 6 20 7 23 0.00  
5 29 16 2 24 16 3 96 86 75 30.00 29.86 29.77 10 8 5 24 11 28 T Snow
6 19 17 14 14 12 10 88 83 77 29.88 29.78 29.65 10 6 2 18 8 22 0.02 Snow
7 18 11 4 14 8 0 92 86 80 29.82 29.63 29.54 10 3 0 38 19 46 0.06 Fog , Snow
8 11 2 -7 3 -2 -9 87 77 66 30.23 30.04 29.77 10 9 3 23 9 26 0.00 Snow
9 16 3 -10 9 -1 -13 87 77 67 30.38 30.32 30.20 10 9 2 13 5 15 0.00  
10 22 19 16 19 16 10 92 83 73 30.39 30.30 30.23 10 2 0 18 12 23 0.32 Fog , Snow
11 21 17 13 19 16 10 92 88 84 30.44 30.27 30.20 7 3 1 18 11 23 0.13 Snow
12 13 3 -8 10 3 -7 92 86 80 30.65 30.57 30.40 10 7 2 21 13 24 T Snow
13 14 3 -9 9 0 -9 95 86 76 30.58 30.40 30.18 10 5 0 18 9 24 T Fog
14 20 10 0 16 10 -2 95 88 80 30.34 30.19 30.03 6 4 1 21 8 24 T Snow
15 20 9 -2 14 5 -6 88 82 76 30.39 30.22 30.07 10 7 2 28 16 33 T Snow
16 16 6 -5 12 4 -8 88 82 76 30.38 30.19 29.89 10 9 2 22 8 29 T Snow
17 30 23 16 27 21 12 92 88 84 29.87 29.64 29.49 4 2 0 24 13 31 0.23 Fog , Snow
18 21 13 5 18 6 1 92 86 80 30.17 30.00 29.78 10 6 1 24 15 29 0.01 Rain , Snow
19 6 -1 -8 1 -4 -11 90 83 75 30.29 30.20 30.08 10 8 1 16 9 18 0.03 Snow
20 11 -1 -14 7 -4 -18 83 78 72 30.26 30.17 30.11 10 6 2 31 17 35 T Snow
21 6 -8 -22 3 -10 -26 87 81 75 30.22 30.05 29.83 10 8 2 14 6 16 T Snow
22 10 0 -10 6 -4 -15 88 84 79 30.27 30.03 29.87 10 9 4 16 10 18 T Snow
23 9 -4 -18 5 -9 -21 87 80 72 30.34 30.20 29.93 10 10 9 18 7 21 0.00  
24 29 19 9 27 15 6 92 86 80 30.12 29.96 29.85 10 7 2 21 13 25 T  
25 21 11 1 19 12 -1 100 90 80 30.17 30.09 30.02 10 6 0 18 7 21 0.00 Fog
26 23 19 15 20 16 12 100 92 84 30.19 30.09 29.94 10 4 1 18 11 22 T Snow
27 32 25 18 27 21 17 100 89 78 29.94 29.86 29.80 9 5 0 18 9 21 T Fog
28 32 27 21 28 23 20 100 92 84 29.90 29.79 29.68 10 3 0 24 10 30 0.00 Fog
29 32 21 9 28 19 5 92 87 81 30.23 30.00 29.79 10 7 1 25 16 31 T Snow
30 22 15 8 19 11 3 92 85 77 30.42 30.34 30.19 10 9 5 18 11 22 0.00  
31 22 19 16 18 15 12 92 85 77 30.40 30.29 30.21 10 3 1 20 14 22 0.26 Snow